Zhongshi Brand Float Collar has following extradionary Specifications:
1). Drillable aluminium alloy as the inner component
2). Directly connected with the casing
3). Eligible back-pressure air proof configuration, can reduce the resistance of grout or mud.
4). Valve seat and valve core can effectively prevent the return of mud
5). Intensity noumenon material equals to APIN-80steel grade.
| Size | outer diameter | inner diameter | least aperture parameter | Float collar | Ibf (in 2) |
| Float collar | 5.5 7 9.625 13.375 | 6 | 4.75 | 2 | 5.5 | 4351 |
| 7.625 | 6.25 | 2.375 | 7 | 3626 |
| 10.625 | 8.625 | 2.375 | 9.625 | 3626 |
| 14.375 | 12.375 | 2.375 | 13.375 | 3626 |
| Float shoe | 5.5 | 6 | 4.75 | 2 | 5.5 | 4351 |
| 7 | 7.625 | 6.25 | 2.375 | 7 | 3626 |
| 9.625 | 10.625 | 8.625 | 2.375 | 9.625 | 3626 |
| 13.375 | 14.375 | 12.375 | 2.375 | 13.375 | 3626 |
| Casing Size | Max O.D. | Min.I.D. | Overall Length |
| in. | mm | mm | mm | in. | mm | in |
| 7 | 208 | 8.189 | 157 | 6.181 | 1140 | 44.882 |
| 7-5/8 | 230 | 9.055 | 174.2 | 6.858 | 1140 | 44.882 |
| 9-5/8 | 282.5 | 11.122 | 220.5 | 8.681 | 1170 | 46.063 |
| 10-3/4 | 310 | 12.205 | 252 | 9.921 | 1211 | 47.677 |
| 13-3/8 | 384 | 15.118 | 315 | 12.402 | 1211 | 47.677 |
| Casing Size | Max O.D. | Min.I.D. | Overall Length |
| in. | mm | mm | mm | in. | mm | in |
| 7 | 208 | 8.189 | 157 | 6.181 | 1140 | 44.882 |
| 7-5/8 | 230 | 9.055 | 174.2 | 6.858 | 1140 | 44.882 |
| 9-5/8 | 282.5 | 11.122 | 220.5 | 8.681 | 1170 | 46.063 |